What determines the color of an opaque object?

• A. The colors of light it absorbs
• B. The colors of light it reflects
• C. The colors of light it refracts
• D. The colors of light it transmits

Answer: (B)

The color of an opaque object is determined by the colors of light it reflects. When light strikes an opaque object, certain wavelengths are absorbed while others are reflected. The wavelengths that are reflected back to our eyes are what we perceive as the object's color. For example, a red apple appears red because it reflects red wavelengths of light and absorbs other colors. Therefore, the characteristic color that we see is directly related to the specific wavelengths that are reflected off the surface of the object.

In contrast, the absorption of colors results in a lack of certain colors being visible, while refraction involves the bending of light as it passes through transparent materials, and transmission refers to light passing through an object without being absorbed or reflected. These processes do not determine the color of opaque objects, which is solely defined by their reflective properties.